Audi SQ6 Sportback e-tron vs Porsche Cayenne

The Audi SQ6 Sportback e-tron costs £6,950 more than the Porsche Cayenne. For that premium it adds 55 kW more power. The Porsche Cayenne is not just cheaper - it also offers 120 kW faster peak rapid charging and 270 litres more boot space. On EVcarsguide's combined category scores, the Audi SQ6 Sportback e-tron comes out ahead overall.

The Porsche Cayenne is £6,950 cheaper to buy. The Audi SQ6 Sportback e-tron is cheaper to charge, roughly £184 a year versus £240 for the Porsche Cayenne, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the Porsche Cayenne comes out roughly £6,670 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.

EVcarsguide estimates a real-world motorway range of about 309 miles for the Audi SQ6 Sportback e-tron and 234 miles for the Porsche Cayenne - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Audi SQ6 Sportback e-tron goes roughly 75 miles further between charging stops.

The two are within 15 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 435 mm of total clearance for the Audi SQ6 Sportback e-tron and about 420 mm of total clearance for the Porsche Cayenne. The Audi SQ6 Sportback e-tron also turns in a 0.6 m tighter circle, which helps with U-turns and multi-storey ramps.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Audi SQ6 Sportback e-tron and 84% for the Porsche Cayenne. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation.